CN219499636U

CN219499636U - Flexible FPC with double acquisition plugs

Info

Publication number: CN219499636U
Application number: CN202320594892.7U
Authority: CN
Inventors: 刘婷; 肖扬; 陈元华; 李发元
Original assignee: Shenzhen Litai Energy Technology Co ltd
Current assignee: Shenzhen Litai Energy Technology Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-08-08
Anticipated expiration: 2033-03-24

Abstract

The utility model provides a flexible FPC with double acquisition plugs. The flexible FPC comprises an aluminum row shell and a flexible circuit board body, wherein the flexible circuit board body is prefabricated and fixed with the aluminum row shell through plastic suction integration; adopt flexible FPC integrated integration scheme, saved the process of gathering pencil welding and installation, application plastic uptake integrated form is with flexible circuit board body and aluminium row's casing prefabrication together, after the aluminium row welds, gather the pencil and also accomplished the installation, saved the time of module assembly greatly, improved the assembly efficiency of module, specific: the flexible FPC of the double-acquisition wire harness plug replaces the temperature and the number of the voltage acquisition wire harnesses of the single battery cell, and the balancing effect of the BMS on the pressure difference of the single battery cell is greatly improved; the flexible FPC internal circuit is made of copper sheet wires, and the internal resistance of the circuit is small, so that the heating effect of balanced current is reduced; the plugs of the external communication harness are arranged on two sides of the flexible FPC, so that the plug layout is optimized.

Description

Flexible FPC with double acquisition plugs

Technical Field

The utility model relates to the technical field of new energy batteries, in particular to a flexible FPC with double collecting plugs.

Background

The voltage of traditional battery module, temperature acquisition all adopts the fire-resistant cable of teflon to do the collection pencil, and when the increase of module series-parallel connection electric core quantity, the quantity of collection pencil also correspondingly increases, and complicated collection pencil has caused the trouble for the assembly time and the efficiency of whole module.

There is thus an urgent need to redesign a new dual pick up plug flexible FPC to solve the above problems.

Disclosure of Invention

The utility model provides a flexible FPC with double acquisition plugs, which solves the technical problems in the background technology.

The utility model provides a double-collecting-plug flexible FPC, which comprises an aluminum row shell and a flexible circuit board body, wherein the aluminum row shell is arranged on the aluminum row shell;

the flexible circuit board body is prefabricated and fixed with the aluminum row shell through plastic suction integration, and socket ends are fixed at two ends of the flexible circuit board body;

the bottom surface of the aluminum row shell is fixedly provided with a plurality of chips which are distributed in sequence, and the socket end is electrically connected with the chips through the flexible circuit board body;

a plurality of connection pins are arranged in the socket end and correspond to the chips one by one.

Optionally, the upper end face of the aluminum row shell is fixed with a brake control unit, and the brake control units are provided with two brake control units and are respectively located at two ends of the aluminum row shell, and the two brake control units are electrically connected with the chip through the flexible circuit board body.

Optionally, the upper end face of the aluminum row shell is provided with a plurality of heat dissipation grooves which are distributed in an equidistant array along the length direction of the aluminum row shell, and the positions of the plurality of heat dissipation grooves respectively correspond to the plurality of chips.

Optionally, a plurality of cavities are arranged in the aluminum row shell, the cavities and the heat dissipation grooves are arranged in a staggered mode, and heat dissipation holes communicated with the cavities are formed in the side walls of the two opposite sides of the aluminum row shell.

Optionally, the bottom wall is provided with a plurality of radiating fins that array distributes in the cavity, and a plurality of radiating fins all form with aluminium row casing is whole.

Optionally, the level of the radiating hole is higher than the level of the upper end of the radiating fin, and a communication hole for communicating a plurality of cavities is formed in the aluminum row shell.

The beneficial effects of the utility model are as follows:

this flexible FPC of two collection plugs adopts the integrated scheme of flexible FPC integration, has saved the process of gathering pencil welding and installation, and the form of application plastic uptake integration is together prefabricated flexible circuit board body and aluminium row casing, and after the aluminium row welding was accomplished, gathers the pencil and also accomplished the installation, has saved the time of module assembly greatly, has improved the assembly efficiency of module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall axial structure of a flexible FPC with dual acquisition plugs;

fig. 2 is a schematic diagram of the overall upward axis side structure of the flexible FPC with double collection plugs;

fig. 3 is a half-sectional view of an aluminum row housing of the flexible FPC with double collection plugs.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 3, fig. 1 is a schematic diagram of an overall axial structure of a flexible FPC with dual-collection pins according to the present utility model; fig. 2 is a schematic diagram of the overall upward axis side structure of the flexible FPC with double collection plugs; fig. 3 is a half-sectional view of an aluminum row housing of the flexible FPC with double collection plugs.

The flexible FPC of the double-collection plug comprises an aluminum row shell 1 and a flexible circuit board body 3;

the flexible circuit board body 3 is prefabricated and fixed with the aluminum row shell 1 through plastic suction integration, and socket ends 4 are fixed at two ends of the flexible circuit board body 3;

the bottom surface of the aluminum row shell 1 is fixedly provided with a plurality of chips 2 which are distributed in sequence, and the socket end 4 is electrically connected with the chips 2 through the flexible circuit board body 3;

a plurality of connection pins are arranged in the socket end 4 and respectively correspond to the chips 2 one by one.

Based on the structure, the integrated scheme of flexible FPC (namely flexible circuit board body 3) integration is adopted, the process of welding and installing the acquisition wire harness is omitted, the flexible circuit board body 3 and the aluminum row shell 1 are prefabricated together in a plastic suction integrated mode, and after the aluminum row is welded, the installation of the acquisition wire harness is also completed. The time of module assembly has been saved greatly, the assembly efficiency of module has been improved.

The upper end face of the aluminum row shell 1 is fixedly provided with brake control units 5, the brake control units 5 are provided with two brake control units and are respectively located at two ends of the aluminum row shell 1, the two brake control units 5 are electrically connected with the chip 2 through the flexible circuit board body 3, and the process of collecting the chip 2 is controlled by adopting double brake control units 5 (BCU), so that the whole collection module is prevented from losing effect when a single brake control unit 5 is prevented from losing effect to a certain extent.

The heat dissipation grooves 11 are formed in the upper end face of the aluminum row shell 1, the heat dissipation grooves 11 are formed in a plurality of grooves and distributed in an equidistant array along the length direction of the aluminum row shell 1, the positions of the heat dissipation grooves 11 correspond to the chips 2 respectively, and the chips 2 and the flexible circuit board body 3 are subjected to heat dissipation through the arrangement of the heat dissipation grooves 11, so that the situation that the double-collection-plug flexible FPC generates too high heat during working to damage or influence collection accuracy is avoided.

Wherein, be provided with a plurality of cavitys 12 in the aluminium row casing 1, a plurality of cavitys 12 set up with a plurality of heat dissipation groove 11 are crisscross, and the radiating hole 13 with cavity 12 intercommunication has been seted up to the lateral wall of the relative both sides of aluminium row casing 1, through the setting of cavity 12 and radiating hole 13, has further enlarged the radiating area of aluminium row casing 1, the reinforcing is to the radiating effect of chip 2 and flexible circuit board body 3.

Wherein, bottom wall is provided with a plurality of array distribution's fin 14 in the cavity 12, and a plurality of fin 14 all form with the aluminium row casing 1 is integrative, through the setting of fin 14, further enlarges the heat radiating area in the cavity 12, cooperates louvre 13 to dispel the heat, has improved the radiating efficiency of this aluminium row casing 1 to this flexible FPC of dual acquisition plug produces too high heat at the during operation of effectual avoiding.

Wherein, the level of the heat dissipation hole 13 is higher than the level of the upper end of the heat dissipation fin 14, a communication hole 15 for communicating the plurality of cavities 12 is arranged in the aluminum row shell 1, and the plurality of cavities 12 are communicated through the arrangement of the communication hole 15, so that the aluminum row shell 1 is beneficial to uniformly dissipating heat of the plurality of chips 2 and the flexible circuit board body 3.

In this embodiment, adopt flexible FPC's that flexible circuit board body 3 integration's integrated scheme, saved the process of gathering pencil welding and installation, utilize the form of plastic uptake integration to prefabricate flexible circuit board body 3 and aluminium row casing 1 together, after the aluminium row welding, gather the pencil and also accomplished the installation, saved the time of module assembly greatly, improved the assembly efficiency of module, specifically: the flexible FPC of the double-acquisition wire harness plug replaces the temperature and the number of the voltage acquisition wire harnesses of the single battery cell, and the balancing effect of the BMS on the pressure difference of the single battery cell is greatly improved; the flexible FPC internal circuit is made of copper sheet wires, and the internal resistance of the circuit is small, so that the heating effect of balanced current is reduced; plugs of the external communication wire harness are arranged on two sides of the flexible FPC, so that plug layout is optimized; the FPC is internally close to the structure above the battery core pressure release valve, a hollowed-out design is adopted, the heat dissipation of the battery core is facilitated, and meanwhile, the release and upward discharge of high-temperature and high-pressure gas during thermal runaway of the battery core are facilitated.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims

1. The flexible FPC with the double collection plugs is characterized by comprising an aluminum row shell and a flexible circuit board body;

a plurality of connecting pins are arranged in the socket end, and the connecting pins are respectively in one-to-one correspondence with the chips.

2. The flexible FPC (flexible printed circuit) with the double acquisition plugs according to claim 1, wherein the upper end face of the aluminum row shell is fixedly provided with two brake control units which are respectively positioned at two ends of the aluminum row shell, and the two brake control units are electrically connected with the chip through a flexible circuit board body.

3. The flexible FPC with double collection plugs according to claim 2, wherein the upper end face of the aluminum row shell is provided with a plurality of heat dissipation grooves which are distributed in an equidistant array along the length direction of the aluminum row shell, and the positions of the plurality of heat dissipation grooves respectively correspond to the plurality of chips.

4. The flexible FPC of claim 3, wherein a plurality of cavities are provided in the aluminum row housing, a plurality of the cavities are staggered with a plurality of the heat dissipation grooves, and heat dissipation holes communicated with the cavities are provided on the side walls of the two opposite sides of the aluminum row housing.

5. The dual pick up plug flexible FPC of claim 4 wherein said cavity inner bottom wall is provided with a plurality of array distributed heat sinks, a plurality of said heat sinks being integrally formed with an aluminum row housing.

6. The flexible FPC of claim 5 wherein the heat dissipating holes have a higher level than the upper ends of the heat dissipating fins, and the aluminum row housing has communication holes formed therein for communicating the plurality of cavities.